Folded box blank

ABSTRACT

A folding box blank ( 1 ) having a plurality of base portions ( 2, 3, 30, 31, 32, 33 ) and at least four side wall portions ( 10, 11, 14, 15, 16, 17 ) hinged thereon, wherein the in each case two base portions are arranged symmetrically with respect to one another.

The invention relates to a folding box blank having a plurality of baseportions and at least four side wall portions hinged thereon.

Many folding boxes are intended to accommodate relatively large volumes,but must enclose either only small volumes or no volume when they aretransported.

In addition, the folding boxes should be simple to assemble and stablewhen standing.

Moreover, folding boxes of this kind can also have inner bags which areable to protect the contents from moisture, for example.

It is an object of the invention to create a folding box blank which canbe assembled to form a folding box which can have an at least partlyflattened-out state and a completely assembled state.

This object is achieved in that in each case two base portions arearranged symmetrically with respect to one another.

This makes it possible to provide a flattened-out pack.

It is also very advantageous when the line of symmetry is in the form ofa base folding line.

It is, however, likewise very advantageous, when the side wall portionsare arranged symmetrically with respect to the base folding line.

This ensures a symmetrical structure of the folding box.

A further very advantageous configuration of the invention is alsoprovided when connecting portions are hinged on the outer side wallportions.

Using these connecting portions, the blank can be connected to the pack.It is conceivable here for the connection to be in the form of a finseam.

It is likewise very advantageous, according to the invention, when aplurality of base portions are provided in the longitudinal direction ofthe base folding line.

As a result, a base which is closed in the assembled state of the packcan be configured.

A further very advantageous development of the invention is alsoprovided when the outer base portions have a contour which is in theform of a portion of a circle or in the form of a gusset and is directedtoward the inner base portions.

Here, it is extremely advantageous, when the greatest dimension of thecontour in the form of a portion of a circle or in the form of a gussetis arranged in the direction of the side wall portions.

A configuration of this kind ensures that when putting up aflattened-out pack, these base portions are assembled in each case toform a planar base part.

It has further proved to be extremely advantageous when there isprovision in the outer base portions of folding lines which extend fromthe point at which the contour in the form of a portion of a circle orin the form of a gusset meets the base folding line to the outer edgesof the outer side wall portions.

This configuration ensures even better erecting of the base portions.The base is additionally stiffened.

A further very advantageous configuration is provided when portions inthe form of hooks are provided in the region of the point at which thecontours in the form of a portion of a circle or in the form of a gussetmeet the base folding line.

These portions in the form of hooks interlock and thus prevent the basefrom unintentionally folding back. The erected base is very stable as aresult.

It is likewise very advantageous when portions in the form of hooks areprovided at the outer border of the outer base portions in the region ofthe base folding line.

These outer portions in the form of hooks are also able to interlock andthus prevent the base from folding back.

According to the invention, it has also proven to be very advantageouswhen there is provision of a central base portion, which has anincreasing longitudinal extent starting from the adjacent side wallportions.

It is very advantageous here when the length of the base portion isgreater in the region of the base folding line than in the region of theside wall portions.

It is likewise very advantageous when a constriction in the contour ofthe central base portion is provided in the region of the base foldingline.

In a configuration of this kind of the central base portion, the outerbase portions are guided during erecting and brought into the envisionedplanar position. The base is closed.

A further very advantageous configuration of the invention is alsoprovided when barbs and/or holders for barbs are provided on the baseportions in the region of the base folding line.

The barbs and the holders connect the base portions together and preventfolding back.

For a folding box produced from a blank as claimed in one of thepreceding claims, it has proved to be very advantageous when, during theassembling of a blank which has been pre-folded in the form of a W, thebase portions engage in one another and together form an at leastapproximately planar base, and in the process engage firmly in oneanother.

This produces a safely standing and stable pack with a large volume.

The invention is illustrated in the following text on the basis of aplurality of exemplary embodiments.

In the figures:

FIG. 1 shows a blank having a plurality of base portions and inwardlydirected catching means,

FIG. 2 shows a further blank having differently configured base portionshaving inwardly directed catching means,

FIG. 3 shows a third blank having outwardly directed catching means.

In FIG. 1, a blank having two central base portions 2 and 3 isdesignated 1. The base portions 2 and 3 are separated from one anotherby a folding line 4. Incisions 5 and 6 in the form of hooks are providedclose to the folding line 4 in the central base portions 2 and 3.Starting from the folding line 4, the width of the central base portions2 and 3 increases, and so a protrusion 7 is formed. Proceeding from thisprotrusion 7, the central portions 2 and 3 become narrower again inorder to assume the width of the adjacent side wall portions 10 and 11,which are hinged on the central base portions 2 and 3 via a respectivefolding line 12 and 13.

Further side wall portions 14, 15, 16, and 17 are hinged, by way offolding lines 18, 19, 20 and 21, laterally to the side wall portions 10and 11, in each case on both sides.

Connecting portions 22 and 23 are provided on the sides of the side wallportions 14, 15, 16 and 17 remote from the side wall portions 10 and 11.These connecting portions are adhesively bonded to the side wallportions 16 and 17. It is also conceivable for there to be provision offour connecting portions 22 and 24 and also 23 and 25, which can beconnected to a fin in each case during the assembling of the pack. Theconnecting portions 22, 23, 24 and 25 are hinged on the side wallportions 14, 15, 16 and 17 via folding lines 26.

Further base portions 30, 31, 32 and 33 are hinged on the side wallportions 14, 15, 16 and 17 via folding lines 34, 35, 36 and 37 and areseparated from one another by folding lines 38 and 39 lying in extensionof the folding line 4.

The base portions 30, 31, 32 and 33 are provided in the region of theinner end of the folding lines 38 and 39 with incisions 40 and 41, inthe form of hooks, which are able, during the erecting of the blank toform a pack, to engage in the incisions 5 and 6 in the form of hooks inthe central base portions 2 and 3 and to interlock therewith.

Reinforcing portions 43 are hinged on the base portions 30, 31, 32 and33 via folding lines 42. The folding lines 42 extend in each case fromthe intersections of the folding lines 38 and 39 with the incisions 40and 41 in the form of hooks to the folding lines 26. During the erectingof a pack formed from the blank 1, the reinforcing portions 43 make iteasier to erect and additionally stiffen the base formed.

When flattening out the blank 1, the base portions 2, 3, 30, 31, 32 and33 are folded inward between the side wall portions 10, 11, 14, 15, 16and 17, and so, as seen from the side, a configuration in the form of aW results.

A film bag formed in a manner corresponding to the configuration in theform of a W can be inserted into this blank and can comprise, forexample, moisture-sensitive material that adds volume. In addition toits function as a moisture barrier, the film bag can also act as agrease barrier, and so grease contained in the bag cannot pass into thecardboard material of the blank 1.

The film bag can in this case firstly be adhesively bonded on the sidewall portions 10, 11, 14, 15, 16 and/or 17 with spots or lines ofadhesive and/or be incorporated by adhesive bonding into the seams.consisting of the connecting portions 22, 23, 24 and 25.

The pack flattened out in this way can thus be transported easily and ina space-saving manner.

If the pack is then intended to be assembled, the seams or fin seams arepushed together. This reduces the folding in of the base portions 2, 3,30, 31, 32 and 33. The base portions 30, 31, 32 and 33 are guided by theprotrusions 7, and so the barbs formed from the incision lines 5, 6, 40and 41 are able to engage in one another. The individual base portions2, 3, 30, 31, 32 and 33 are matched in form to one another such that thebarbs engage precisely when the base formed from the base portions 2, 3,30, 31, 32 and 33 has folded out flat.

The hooking-in of the barbs renders the base extremely stable andsteady.

FIG. 2 shows a further configuration of the base portions, in which thecentral base portions 202 and 203 have a rounded configuration.

It is, however, also conceivable, as illustrated in FIG. 3, to provide,instead of the inwardly directed incisions 5, 6, 40 and 41 in the formof barbs, outwardly directed barbs 305 and 306, which are provided inrecesses 307 and 308 in the central base portions 302 and 303. In thisexemplary embodiment, the central base portions 302 and 303 have anangular configuration and are at their widest in the region of thefolding line 4. The compulsory engagement of the barbs 305 and 306 inthe recesses 307 and 308 takes place in this case with the pack foldedout slightly further than the finished state.

It is also conceivable to provide further wall and base portions andthus to create a pack that has more angles than the examplesillustrated. It is also conceivable here for the pack to have only fourside wall portions and base portions, in which case an approximatelyrectangular pack can be erected.

Cardboard, which is uncoated or has a coating on its inside and/oroutside, can be used for the blank 1. In addition, it is conceivable forprinting to be provided on the inside and/or outside.

1. A folding box blank having a plurality of base portions and at leastfour side wall portions hinged thereon, wherein two base portions aresymmetrically positioned with respect to one another.
 2. The folding boxblank as claimed in claim 1, wherein a line of symmetry is in the formof a base folding line.
 3. The blank as claimed in claim 2, wherein theside wall portions are symmetrically positioned with respect to the basefolding line.
 4. The blank as claimed in claim 1, wherein connectingportions are hinged on outer side wall portions.
 5. The blank as claimedin claim 1, wherein a plurality of base portions are provided in alongitudinal direction of the base folding line.
 6. The blank as claimedin claim 5, wherein outer base portions have a contour which is in aform selected from the group consisting of a portion of a circle and agusset and is directed toward an inner base portion.
 7. The blank asclaimed in claim 6, wherein the greatest dimension of the contour ispositioned in the direction of the side wall portions.
 8. The blank asclaimed in claim 6, wherein the outer base portions of folding lineswhich extend from the point at which the contour meets the base foldingline to the outer edges of the outer side wall portions.
 9. The blank asclaimed in claim 6, wherein barbs are provided in a region of the pointat which the contours meet the base folding line.
 10. The blank asclaimed in claim 5, wherein barbs are provided at an outer border of theouter base portions in a region of the base folding line.
 11. The blankas claimed in claim 1, comprising a central base portion, which has anincreasing longitudinal extent starting from adjacent side wallportions.
 12. The blank as claimed in claim 11, wherein a length of thebase portion is greater in a region of the base folding line than in aregion of the side wall portions.
 13. The blank as claimed in claim 11,wherein a constriction in the contour of the central base portion isprovided in a region of the base folding line.
 14. The blank as claimedin claim 11, wherein barbs are provided on the base portions in a regionof the base folding line.
 15. A folding box produced from a blank havinga plurality of base portions and at least four side wall portions hingedthereon, wherein two base portions are symmetrically positioned withrespect to one another, during the assembling of the blank which hasbeen pre-folded in the form of a W, the base portions engage with oneanother and together form an at least approximately planar base, and inthe process engage firmly with one another.